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目的观察3种不同复温方法对海水浸泡性体温过低兔的复温效果。方法健康新西兰兔随机分为3组,每组10只,经(21.0±0.5)℃人工模拟海水浸泡兔至肛温30℃,分别采用自然、水浴、复合碳纤维远红外线3种方法复温至肛温35℃,记录各组所用复温时间及复温以后体温下降度数。分别于浸泡前、复温前及复温3 h后静脉采血,测定血浆丙二醛(malondialdehyde,MDA)和超氧化物歧化酶(super-oxide dismutase,SOD)含量。结果水浴组和远红外线组复温时间明显快于自然组(P<0.01);远红外线组复温后体温后降幅度最小(P<0.01);复温3 h后远红外线组血浆SOD活性明显高于水浴组和自然组,MDA含量明显低于水浴组和自然组(P<0.01)。结论复合碳纤维远红外线装置用于救治海水浸泡性体温过低兔,其复温速度快、体温后降幅度小;对机体有明显的保护性生物学效应。
Objective To observe the rewarming effect of three different rewarming methods on seawater immersion hypothermia in rabbits. Methods Healthy New Zealand white rabbits were randomly divided into 3 groups with 10 rabbits in each group. The rabbits were immersed in artificial sea water for 30 ℃ at (21.0 ± 0.5) ℃. The rabbits were rewarmed to the anus by natural, water bath and composite carbon fiber far infrared Temperature 35 ℃, record the time of rewarming in each group and the degree of descending temperature after rewarming. Blood samples were taken from venous blood before immersion, before rewarming, and after 3 h rewarming respectively. Plasma malondialdehyde (MDA) and superoxide dismutase (SOD) levels were measured. Results The time of rewarming in water bath group and far infrared group was significantly faster than that in natural group (P <0.01). After the rewarming in far infrared group, the decrease in body temperature was the smallest (P <0.01) Higher than the water bath group and the natural group, MDA content was significantly lower than the water bath group and the natural group (P <0.01). Conclusion The composite carbon fiber far-infrared device is used to treat sea-water immersion hypothermia in rabbits, which has the advantages of fast rewarming rate and small decrease after body temperature. It has obvious protective biological effect on the body.